Radio vacuum tube socket adapter



, 1931- N. ZUCKERM AN RADIO VACUUM TUBE SOCKET ADAPTER Original Filed Feb. 18, 1928 INVENTOR Natlmn Zuchkrnwn ATTORNEY Patented Aug. 18, 1931 NATHAN ZUGKERMAN, OF BROOKLYN, NEW YORK RADIO VACUUM TUBE SOCKET AI D APTER 1 Application filed February 18, 1928, Serial No. 255,241. Renewed May 18,1931.

This invention relates generally to radio sets, and has more particular reference to a novel device for bringing out for easy accessibility the most important wires leading to the tubes of a set.

The invention has for an object the provision of a device of the class mentioned,

which is of simple durable construction, de-

sirable and eificient in action, and which'can be manufactured and sold at a reasonable cost.

adapted to engage in the sockets intended for the tubes of a set, an. enlargement therefrom with terminal connections or with suspended leads, connected with the plug member and,

terminals or leads were just recited as being.

mounted on the enlargement, though' it should be understood that the device is not limited as necessarily having an enlargement,

since obviously the wires may be connected Without an enlargement. The link members of the terminals or suspended leads may be switching arrangements, such as substantially breaking the wiring of the set for the pur'.

pose of testing, for inserting new batteries,

inserting various checking instruments, inserting various kinds of instruments, simplifying wiring and changing the filament Wiring, etc., all of these may be accomplished to the appended claims in which the various novel features of the invention are more par ticularly set forth.

Referring to the accom anying drawings forming a material part 0 this disclosure Fig. 1 is a side elevational view of adevice constructed according to this invention.

The device consists of a plug member ,net slot 18 and the contact springs 19,20,21 and 22.

removed or connected for permitting various For further comprehension of the.inven-.

Fig. 2 is a central vertical sectional view thereof.

Fig. 3 is a plan view of the device.

Fig. 4 is a fragmentary vertical sectional view, taken on the line 44' of Fig. 3. v

I Fig. 5 is a schematic view, illustrating the wiring of the device. Fig. 6 is another schematic view illustrating a practical application of the device.

Fig. 7 is a side elevational view of a modified form of device, in which there is no plug enlargement, and suspended leads are used. Fig. 8 is a sectional view taken onv the line 8'8 of Fig. 4.

' The reference numeral 10 indicates geni erally a radio tube socket plug memberv having the customary side pin 11 for engaging the bayonet slot of a radio tube socket, and 1 the customary bottom pegs 12, 13, 14 and 15 for engagingthe contact springs of the radio tube socket- An enlargement 16 is connected to the top of the member 10, and atube socket 17 is arranged on top of theenlargement 16.

This tube socket 17 has the customary'bayor Four pairs of terminals are mounted on the enlargement 16 and are designated by numerals 23,23; 24,24 25, 25; and 26, 26.'-' Normally, conductor link members 27 connect the lead 28 from peg 13 to the terminal 23 and lead 28 connects terminal 23'" with spring 19. Lead 29 connects peg 13, with ter- 1 minal 24, and lead 29" connects 24 with' spring 20. Lead 30 connects peg 14'with terminal 25,: and lead 30 connects 25" with, spring 21, and fi'nally lead 31 connects peg 15. with terminal 26, and lead 31 connects 26' with 22. I

The varioussterminals referred to each consists of a pair of arms 32pivotally supported .attheir lower, ends within the enlargement 16, and a co-axial spring 33 on the pintle pin 32 used to accomplish'the pivotal supporting of the arms normally urges the arms from each other. This motion .is limitedby the material of the enlargement. The arms 32 may be manually pressed together toslip a conductor 27 thereon and in normal condis tions hold an engaged conductor against displacement.

In operation, one or more of the links 27 may be removed and wire connected with the terminals of the enlargement 16, as desired to make various tests without breaking the original wiring of the set. Fig. 6 illustrates an example of one application of the device. The links 27 of the terminals 23, 23- and 26, 26 are removed and it is assumed that terminals 23' and 26' are the filament terminals of the socket 17. The wires 34 are assumed to. connect with some source of power, and then connect the filaments of the sockets illustrated in series while wires 35 illustrate a parallel connection to some source of power. This would be of great advantage in cases where battery elimination is desired. It must be assumed that the original wiring of the set connects the filaments in parallel, and with the aid of these devices the original wiring is not disturbed, and the filaments are I connected in series or on a new parallel circuit. In a like manner the grid circuits may be broken without touching the original wiring of the set, or the plate circuits broken to add resistances for stability.

In Fig. 7 a socket 17 is shown attached to plug 10 by means of a neck 10*, and these parts are provided with insulated suspended leads 36 having bare ends 37 The bare ends 37 may be clamped together, or connected to other leads, for the reasons and purposes above set forth. The neck 10 is not a necessary part and may be omitted.

While I have shown and described a preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modilications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention what I claim as new and desire to secure by United States Letters Patent is 1. A device of the class described, comprising a radio tube socket plug having bottom cont-act pegs, an enlargement arranged on the top thereof, a radio tube socket having contact springs, arranged on top of the enlargement, pairs of connected terminals arranged on the enlargement, and connections for connecting the pegs, the pairs of terminals and the contact springs in series.

2. A device of the class described, comprising a radio tube socket plug having bottom contact pegs, an enlargement arranged on the top thereof, a radio tube socket having contact springs arranged on top of the enlargement, pairs of connected terminals arranged on the disc, connection links removable from the said terminals, and connections for connecting the pegs, the terminals and the contacci. springs in series for the purpose defl'l'ibe.

3. A device of the class described, comprising a radio tube socket plug having bottom contact pegs, an insulation member arranged on thetop thereof, a radio tube socket havin" contact springs arranged on top of the insuIation member, pairs of connected terminals arranged on the disc, connection links removable from the said terminals, and connections for connecting the pegs, the terminals and the contact springs in series for the purpose described.

4. A device of ing a radio tube socket plug having bottom contact pegs, an enlargement arranged on the top thereof, a radio tube socket having contact springs arranged on top of the enlargement, pairs of connected terminals arranged on the enlargement, connection links removable from the saidtcrminals, and wires connecting the pegs, the pairs of terminals and the contact springs in a plurality of series, one of the pegs, pairs of terminals and contact springs being in each series, tially as shown and described.

5. A device of the class described, comprising a radio tube socket plug having bottom contact pegs, an insulation member arranged on the top thereof, a radio tube socket having contact springs arranged on top of the insulation member, pairs of connected terminals arranged on the insulation member, connection links removable from the said terminals, and connections for connecting the pegs, the terminals and the contact springs in series for the purpose described, the socket plug being provided with a projecting pin for engaging the bayonet slot of a customary tube socket, and the said tube socket being provided with a bayonet slot for engagement by the pin of a customary radio tube.

6. A device of the class described, comprising a radio tube socket plug having bottom contact pegs, an insulation enlargement arranged on the top thereof, a radio tube socket having contact springs arranged on top of the enlargement, pairs of connected terminals arranged on the enlargement, each terminal consisting of pairs of pivoted arms urged apart by coaxial springs, connection links removable from the said terminals, and connections for connecting the pegs, the pairs of terminals and the contact springs in series for the purpose described.

In testimony whereof I have affixed my signature.

NATHAN ZUGKERMAN.

the class described, compris substan- 

